MY177987A - Polishing composition for magnetic disk substrates, method for producing magnetic disk substrate, and magnetic disk substrate - Google Patents

Polishing composition for magnetic disk substrates, method for producing magnetic disk substrate, and magnetic disk substrate

Info

Publication number
MY177987A
MY177987A MYPI2016703611A MYPI2016703611A MY177987A MY 177987 A MY177987 A MY 177987A MY PI2016703611 A MYPI2016703611 A MY PI2016703611A MY PI2016703611 A MYPI2016703611 A MY PI2016703611A MY 177987 A MY177987 A MY 177987A
Authority
MY
Malaysia
Prior art keywords
magnetic disk
polishing composition
disk substrate
substrate
substrates
Prior art date
Application number
MYPI2016703611A
Inventor
OOTSU Taira
Matsunami Yasushi
Yokomichi Noritaka
Original Assignee
Fujimi Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujimi Inc filed Critical Fujimi Inc
Publication of MY177987A publication Critical patent/MY177987A/en

Links

Abstract

This invention provides a magnetic disk substrate-polishing composition which is supplied to magnetic disk substrates to polish them. The polishing composition comprises an abrasive and water. The abrasive comprises at least silica particles. The abrasive in the polishing composition has a volume mean particle diameter Da, a volume mean particle diameter Db after a standard polishing test in which a Ni-P substrate is polished with the polishing composition, and a particle diameter change rate X of 80 % or higher, but 115 % or lower, determined by the next equation X = (Db/Da) ? 100.
MYPI2016703611A 2015-09-30 2016-09-30 Polishing composition for magnetic disk substrates, method for producing magnetic disk substrate, and magnetic disk substrate MY177987A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2015195180A JP6572082B2 (en) 2015-09-30 2015-09-30 Polishing composition for magnetic disk substrate, method for producing magnetic disk substrate, and magnetic disk substrate

Publications (1)

Publication Number Publication Date
MY177987A true MY177987A (en) 2020-09-28

Family

ID=58492652

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2016703611A MY177987A (en) 2015-09-30 2016-09-30 Polishing composition for magnetic disk substrates, method for producing magnetic disk substrate, and magnetic disk substrate

Country Status (2)

Country Link
JP (1) JP6572082B2 (en)
MY (1) MY177987A (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004253058A (en) * 2003-02-20 2004-09-09 Kao Corp Polishing liquid composition
JP5484782B2 (en) * 2009-04-30 2014-05-07 花王株式会社 Manufacturing method of abrasive slurry
JP6028432B2 (en) * 2012-07-17 2016-11-16 日立化成株式会社 Polishing liquid for CMP, storage liquid for polishing liquid for CMP, and polishing method

Also Published As

Publication number Publication date
JP6572082B2 (en) 2019-09-04
JP2017068885A (en) 2017-04-06

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